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signal and the receive echo. This phase difference can be converted to a distance,
using the following formula:
Correlation methods are typically used to measure the phase difference of the receive
echo
respective to the transmit signal as well as recover the propagation delay and
therefore the
distance to the object to be measured.
Of course,
a phase difference greater than 2 π is not resolvable; for instance, 3 π or 5
π will be measured as a π radian phase difference. Therefore, depending on the
chosen modulation frequency, an artefacting phenomenon will occur where far-away
objects will appear to be much closer than in reality.
5.1.4 Vzense ToF Principle
Vzense DCAM800 product principle is based on range-gated imaging ToF solution,
and the sensor inside is based on Panasonic CCD sensor MN34906.
